What color of nailpolish should my sister wear?

Wats a good color nail polish should my sis wear? Shes in 6th grade and is kinda girly(not a lot)but some..

Purple

I like blues and greens, personally.
I think its fun to try out different colors and experiment with makeup and things like that.It's part of being a girl, in my opinion.
If you dont like it,you can always wash it off and start over.
:]

Aqua

try Aqua, green, or purple nice colors!!!=]

I love navy blue
Or electric colors, like lime, lemon, and bright blue

If she wears a bright color shirt or outfit, I would go with black. It gives it a nice pretty but also edgy look, so it won't be too girly.

neon green,agua,purple,orange,dark blue.